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Finance industry faces serious IT security issues

23rd June 2008 The finance industry needs to keep its eye on the small change as well as the bigger picture of its security vulnerabilities Read More

Retail sector faces serious IT security issues

23rd June 2008 The retail sector needs to set out its stall and ring the changes in its security vulnerabilities if it is to avoid the potential for hackers to gain unauthorised system access and disrupt service availability Read More

IT managers have more security headaches to deal with

11th May 2008 NTA Monitor's 2008 Annual Security Report has revealed that the average number of vulnerabilities found per test have increased to 21 compared with 19 in 2007 Read More

Solutions not excuses for patch management warns NTA Monitor

23rd April 2008 Patch management is a vital security requirement for any organsation Read More
Date: 1st October 2007
Risk: Medium

Vulnerabilities recently found in Yahoo! Messenger can be exploited by malicious people to compromise a user's system. The vulnerabilities are caused due to boundary errors within the YVerInfo.GetInfo.1 and YVerInfo.GetInfo2.1 ActiveX controls (YVerInfo.dll) when handling the "fvCom()" and "info()" methods. These can be exploited to cause stack-based buffer overflows by passing specially crafted, overly long arguments to the affected methods.

Successful exploitation can result in arbitrary code execution, but to be successful, a malicious web page must be in a domain that contains a ".yahoo." substring in the subdomain of the TLD. The vulnerabilities have been confirmed in versions downloaded before the end of August this year and can be patched by downloading the update to version 8.1.0.419 at:

http://messenger.yahoo.com/download.php.

References